#AB3728#AB3728

#AB3728 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.5% C 0.154 H 30.5°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#AB3728
RGB	rgb(171, 55, 40)
HSL	hsl(7, 62%, 41%)
HSV	hsv(7, 77%, 67%)
CMYK	cmyk(0%, 67.8%, 76.6%, 32.9%)
CIE-LAB	lab(40.49, 46.53, 35.29)
CIE-LCH	lch(40.49, 58.40, 37.18°)
OKLab	oklab(50.47% 0.133 0.0783)
OKLCH	oklch(50.47% 0.154 30.5)
XYZ	xyz(18.5459, 11.5462, 3.2592)
Luminance	0.1154 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AB3728 #289CAB

analogous

#AB285B #AB3728 #AB7928

triadic

#AB3728 #28AB37 #3728AB

tetradic

#AB3728 #5BAB28 #289CAB #7928AB

square

#AB3728 #5BAB28 #289CAB #7928AB

split-complementary

#AB3728 #28AB79 #285BAB

monochromatic

#481711 #79271C #AB3728 #D24F3E #DE7C70

Accessibility & contrast

On white

6.35

#AB3728 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#AB3728 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AB3728

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AB3728	#FFFFFF	#000000	##FFFFFF
##AB3728	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F25

Deuteranopia (green-blind)

#756924

Tritanopia (blue-blind)

#BC1434

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ab3728;
/* rgb */ color: rgb(171, 55, 40);
/* oklch */ color: oklch(50.5% 0.154 30.5);

Tailwind

colors: {
  custom: {
    50: '#cc7463',
    500: '#ab3728',
    950: '#000000',
  },
}

SCSS

$custom: #ab3728;
$custom-light: #cc7463;
$custom-dark: #000000;

JSON

{
  "hex": "#ab3728",
  "rgb": {
    "r": 171,
    "g": 55,
    "b": 40
  },
  "hsl": {
    "h": 6.87,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.50474,
    "c": 0.15432,
    "h": 30.5
  },
  "luminance": 0.11544
}

Semantic roles & 50–950 ramp

primary

#AB3728

secondary

#6ABAC4

accent

#D3E543

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #AB3728

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →